KR20140005831A - A silicone composition for handicraft - Google Patents

Abstract

The present invention relates to a "covalent low specific gravity silicone composition discolored with temperature"; Its purpose is to be non-sticky based on inorganic compounds with excellent transparency, and not to be sticky even after leaving the workpiece (model). It is also possible to change its own color as the temperature changes.
To this end, according to the present invention, a "covalent low specific gravity silicone composition discolored with temperature"; A gel-based silicone base prepared from 60 to 75% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated; A plasticity modifier for preparing a hardness of 15 to 25% with respect to the total weight of the silicone composition and made of powder-based silica; It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification; It is provided with 1 to 3% by weight of the total silicone composition and a color pigment for producing a color; A silica-based hollow filler for 3 to 10% by weight of the total silicone composition and low specific gravity; Zion pigment is prepared in 0.01 to 3% by weight based on the total weight of the silicone composition; It is characterized by consisting of a mixture.

Description

Aerobic low specific gravity silicone composition discolored with temperature {A SILICONE COMPOSITION FOR HANDICRAFT}

The present invention relates to a functional silicone composition that is non-sticky and can be reused because it is not hardened even when the workpiece is made and left unattended; More specifically, the hollow filler has a low specific gravity characteristic, which enables the appearance of a soft and light texture, and its color changes with temperature changes, which can cause curiosity and creativity more effectively. Silicone composition '.

Generally known rubber clay (also known as rubber clay) is made so that children can easily play peacock, and is produced / sold as oily rubber clay or water-based rubber clay. Oily clay can maintain its shape as it is stored after making the sculpture, but it is difficult for children to make a model using the rubber clay. And the water-based rubber clay is easy to use for children because the dough is easy to play, while the content of the moisture content of the sticky phenomenon in the production, the shrinkage and twisting phenomenon occurs when dried and difficult to store for a long time. Further, the oil-based rubber clay and the water-based rubber clay have disadvantages that they can not be easily re-used when they are left standing after manufacturing the work.

To solve this disadvantage; The applicant has filed a “working rubber clay” that is not hardened even after being left for a long time after making a workpiece (model) and filed on June 8, 2010 to secure rights (Patent Registration No. 10-1012314). . The working rubber clay disclosed in the applicant's invention patent No. 10-1012314 is; A gel-based silicon base provided with 60 to 80% of the total weight of the rubber clay and made of a mixture of siloic acid, silicon, dimethyl, methylvinyl and vinyl group-terminated; 15 to 35% based on the total weight of the rubber clay; a plasticity modifier for adjusting the hardness of the silica-based powder system; An antioxidant of oil type which is composed of 1 to 5% based on the weight of the whole rubber clay and is composed of a polydimethylsiloxane system to prevent solidification; 0.1 to 1% based on the total weight of the rubber clay, and an antimicrobial agent for preventing bacterial growth; Are mixed with each other.

As a result, the base material consists of silicone base and polydisiloxane anti-solidification agent, which are excellent in transparency, and are excellent in transparency and non-sticky, so they can be reused because they do not harden even after being left for a long time without making them work. It has an effect. In addition, a small amount of the antimicrobial agent is added, there is an advantage that can prevent the breeding of bacteria even by using rubber clay repeatedly.

However, in the "functional rubber clay" disclosed in Patent No. 10-1012314, there is an advantage that it can be reused because it does not harden after being left for a long time, but its specific gravity is considerable so that it can sink in water and play with various places. There is. In addition, in the "working rubber clay" disclosed in the above Patent No. 10-1012314, it is possible to produce a variety of colors by varying the color pigments added, but can not change the color itself. As a result, most infants and children who play with the action rubber clay have limitations to induce curiosity and creativity / creation.

The present invention has been made to solve such a problem, The object of the present invention is not sticky with the inorganic compound as a main component and can be reused because it does not harden even after being left in the air after making a workpiece (model), and has a low specific gravity characteristic through a hollow filler to provide a soft and light texture. It is possible to float in water, and its own color is also changed according to the temperature change, thereby providing a "cooperative low specific gravity silicone composition discolored with temperature" which can more effectively induce curiosity and creativity.

Another object of the present invention is to provide a "cooperative low specific gravity silicone composition discolored with temperature" which can prevent bacterial propagation by adding a small amount of an antimicrobial agent to a silicone composition composed mainly of an inorganic compound.

In addition, another object of the present invention is to provide a "working low specific gravity silicone composition discolored according to temperature" which can make a luminous work for various atmospheres by adding a small amount of photoluminescent agent to the silicone composition of which the inorganic compound is a main component. will be.

According to an aspect of the present invention, In the functional low specific gravity silicone composition which is composed of an inorganic compound which can be repeatedly used as a functional degree and discolored with temperature;

The conjugated low specific gravity silicone composition; A gel-based silicone base prepared from 60 to 75% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated; A plasticity modifier for preparing a hardness of 15 to 25% with respect to the total weight of the silicone composition and made of powder-based silica; It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification; It is provided with 1 to 3% by weight of the total silicone composition and a color pigment for producing a color; It is provided with 3 to 10% by weight of the total silicone composition and the hollow filler of the silica-based for low specific gravity; Zion pigment is prepared in 0.01 ~ 3% with respect to the total silicone composition midrange; Are mixed with each other.

The present invention also provides In the functional low specific gravity silicone composition which is composed of an inorganic compound which can be repeatedly used as a functional degree and discolored with temperature;

The conjugated low specific gravity silicone composition; A gel-based silicone base prepared from 60 to 75% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated; A plasticity modifier for preparing a hardness of 15 to 25% with respect to the total weight of the silicone composition and made of powder-based silica; It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification; It is provided with 1 to 3% by weight of the total silicone composition and a color pigment for producing a color; It is provided with 0.3 to 5% by weight of the total silicone composition and the hollow filler of the acrylic-based for low specific gravity; Zion pigment is prepared in 0.01 ~ 3% with respect to the total silicone composition midrange; Are mixed with each other.

The present invention also provides The zeolite pigment is a reversible zeolite pigment which gradually changes in transparency as the temperature rises with reference to 25 to 28 캜 and falls below a reference temperature to show the self color of the zeolite pigment.

The present invention also provides 0.1 to 1% by weight of the total silicone composition and an antimicrobial agent to prevent bacterial growth; It is characterized in that the mixture is made of a low specific gravity silicone composition discolored with temperature by further mixing.

The present invention also provides 1-10% of the photoluminescent agent by weight of the total silicone composition; It is characterized in that the mixture is made of a low specific gravity silicone composition discolored with temperature by further mixing.

According to the "functional low specific gravity silicone composition discolored with temperature" according to the present invention comprising a mixture as described above; It is non-sticky with inorganic compounds as a main ingredient and can be reused because it is not hardened even if it is left in the air after making a workpiece (model), and it has low specific gravity characteristics through hollow fillers for soft and light texture. In addition, the color is changed according to the temperature change, there is an effect that can more effectively induce the curiosity and creativity of children or infants.

Furthermore, according to the "functional low specific gravity silicone composition discolored with temperature" according to the present invention; A small amount of the antimicrobial agent is mixed in the main component of the inorganic compound, which is advantageous in that it prevents the propagation of bacteria even after repeated use.

Furthermore, according to the "functional low specific gravity silicone composition discolored with temperature" according to the present invention; Since a small amount of photoluminescent agent is mixed with the main component of the inorganic compound, there is an advantage that a workpiece having a luminous function can be produced.

Hereinafter, one preferred embodiment and physical properties according to the present invention will be described in detail, which is intended to explain in detail enough that one of ordinary skill in the art can easily carry out the invention. This does not mean that the technical spirit and scope of the present invention is limited.

According to the present invention, the "functional low specific gravity silicone composition discolored by temperature" is made by mixing essential components such as silicone base, plasticity control agent, anti-solidification agent, color pigment, hollow filler, and Zion pigment in an appropriate composition ratio. The composition of the antimicrobial agent and the photoluminescent agent may be additionally mixed to inhibit bacterial propagation and may impart a luminous function.

The silicone base contains 60 to 75 parts by weight of the total silicone composition, and consists of siloxane and silicones, dimethyl, methylvinyl and vinyl group-terminated. The silicone base composed of the above components serves to maintain the shape of the functional silicone composition. The silicon base should be contained in an amount of 60 to 75 parts by weight based on the total weight of the silicone composition to facilitate molding and maintain its shape. When it is contained in an amount exceeding 75 parts by weight, the formability of the work piece is improved, but the shape is easy even after making the work piece. It can be modified. In an embodiment of the present invention, the silicone base may be a siloxane and chemicals (Siloxanes and silicones), dimethyl (Dimethly), methylvinyl and vinyl group-terminated of Chemical Service Summary No. 68083-18-1. (vinyl group-terminated) was mixed in a gel state.

The plasticity control agent is contained 15 to 25 parts by weight based on the total weight of the silicone composition, made of a powder-based silica, it is contained in the silicone composition serves to determine its plasticity (hardness). These plasticity modifiers are in the form of powder of silica particles of 5 to 50,000 millimicrons, and it is preferable to use silicon dioxide (CAS No) 7631-86-9. The silica may also be selected from the group consisting of dry silica having a particle size of 5 to 20 millimicrons and wet silica having a particle size of 20 to 2,000 millimicrons and diatomite having a particle size of 2,000 to 50,000 millimicrons Or more. The above-mentioned dry silica (Fumed Silica) is excellent in transparency and can express various colors clearly. Wet silica (Precipitated Silica) is not very excellent in transparency, but it can express color clearly. Diatomaceous earth is not suitable for producing clear colors because its color is light gray or beige, but it is suitable for expressing dark colors.

The anti-solidifying agent is contained in 1 to 5 parts by weight based on the total weight of the silicone composition, is made of a polydimethylsiloxane, and is contained in the silicone composition serves to prevent its solidification. Such anti-solidification agents are in the form of transparent oils, preferably using polydimethylsiloxane of Chemical Service Summary No. (CAS No) 63148-62-9. The anti-solidification agent composed of the above components serves as a lubricant to soften the silicone composition while delaying the curing and curing of the silicone composition over time. In addition, the anti-solidification agent composed of polydimethylsiloxane is widely used in women's cosmetics and the like, and serves to prevent the solidification of the silicone composition, as well as to brighten the shine and brightness on the surface of the silicone composition.

In addition, the color pigment is contained in 1 to 3 parts by weight based on the total weight of the silicone composition, and serves to give a color (color) to the silicone composition excellent in transparency. In the silicone composition, when the silicone base, the plasticity control agent, and the anti-solidifying agent are mixed and kneaded, they have a milky white color, and when the color pigments in powder form having a color such as red, green, yellow, and blue are mixed, Cooperative low specific gravity silicone compositions can be made.

In addition, the hollow filler is made of 3 to 10 parts by weight of the silica-based hollow filler relative to the total weight of the silicone composition, it is contained in the silicone composition serves to lower the specific gravity thereof. The hollow filler may be composed of an acrylic in addition to the silica-based, it serves to determine the plasticity of the silicone composition with a plasticity control agent while achieving a low specific gravity. In the first embodiment of the present invention, the hollow filler was applied under the product name GLASS BUBBLE of 3M, which is a high strength, low specific gravity additive made of soda lime borosilicate glass which is resistant to moisture and is very chemically stable. The main characteristics of the hollow filler of 3M company as described above can reduce the specific gravity of the silicone composition and reduce the weight, there is a soft surface advantage. In an embodiment of the present invention, when the silica-based hollow filler is mixed about 3% by weight of the total silicone composition, the specific gravity may be reduced to about 0.95, and when mixed about 10%, the specific gravity may be reduced to about 0.8.

In addition, the Zion pigment (5) is mixed in an amount of 0.01 to 3 parts by weight based on the total weight of the silicone composition, which is made of a powder form that changes color with temperature change. Zion pigments are basically classified as reversible or irreversible depending on whether they are transparent when the temperature rises above the reference temperature and then return to the original color when the temperature decreases again. The reversible zeolite pigment can be used repeatedly back to its original color, and the irreversible zeolite pigment is a one-shot that does not return to its original color. In more detail, the reversible Zion pigment is a black pigment having a reference temperature of 20 ° C., that is, a pigment that changes to transparent at 20 ° C. or higher; When the temperature is 10 ℃, it appears black and gradually becomes transparent when the temperature is over 20 ℃. When the ambient temperature is 30 ℃, the color becomes transparent when the temperature drops below 20 ℃.

These Zion pigments are basically composed of microcapsule materials, as shown in the discoloration concept below, and in the capsules are composed of an electron donor and an electron acceptor, and these materials When combined, they show color and heat separates and becomes transparent.

<Zion Pigment Discoloration Concept>

Zion pigment in the embodiment of the present invention was adopted in the form of a powder to make it easy to mix with other compositions, gradually turning to transparent as the temperature is raised on the basis of 25 ~ 28 ℃ Zion when below the reference temperature It consisted of a reversible zion pigment which exhibited its own color. Adopting a Zion pigment with a discoloration reference temperature of 25 ~ 28 ℃ is a visual effect that children and infants generally play with the "cooperative low specific gravity silicone composition" according to the present invention at room temperature and the color changes even at a small temperature difference. This is to make it easy to check. In addition, such Zion pigments have their own color and are mixed with a color pigment color that is basically mixed with the silicone composition, thereby making a silicone composition having a more diverse color. It is possible to apply, but not limited to, a liquid Zion slurry (Thermochromic-Slurry)}

On the other hand, the antimicrobial agent that can be mixed additionally contains 0.1 to 1 parts by weight based on the total weight of the silicone composition, and serves to prevent the growth of bacteria in the silicone composition. Such antimicrobial agents can be used in any form, such as liquid or powder, as long as they can impart antimicrobial properties to the silicone composition, and the silicone composition containing such antimicrobial agents can inhibit the growth of bacteria after production is completed, so that the silicone composition can be played with toys. It serves to block the infection of the user from bacteria.

In addition, the photoluminescent agent may be additionally mixed in an amount of 1 to 10 parts by weight based on the total weight of the silicone composition, and when the aluminum-based photoluminescent agent having a particle size of 3 to 10,000 milli microns is mixed, the light energy accumulates on its own, A low specific gravity silicone composition can be produced. In the embodiment of the present invention, although the aluminum series is adopted as the photoluminescent agent, various kinds of photoluminescent agents may be selected and applied.

Next will be described the manufacturing process of the functional low specific gravity silicone composition discolored according to the temperature according to the present invention the composition is applied as described above.

First, the manufacturing process of the low-weight silicone composition according to the present invention is kneading step of kneading the silicone base, the plasticity control agent, the anti-solidifying agent and mixing the first, and after this kneading process color pigments, hollow fillers, Zion pigments In addition, it is divided into mixing process.

The kneading process is performed by using a dough reader, with a silicone base of 60 to 75% based on the total weight of the silicone composition, 15 to 25% plasticity control agent based on the total weight of the silicone composition, and 1 to 5% of the total weight of the silicone composition. It is a process to knead the hardening agent. After the kneading process, the silicone base, the plasticity control agent, and the solidification agent are evenly mixed to complete the silicone composition in the form of dough (DOUGH).

Subsequently, the mixing process was performed using a roller mixer, with a color pigment of 1 to 3% based on the total weight of the silicone composition, a silica based hollow filler of 3 to 10% relative to the weight of the total silicone composition, and 0.01 to a weight of the total silicone composition. It is a process of additionally mixing 3% Zion pigment into the silicone composition in the form of dough. Through this mixing process, A functional low specific gravity silicone composition discolored with temperature according to the present invention is finally completed.

Such a low specific gravity silicone composition can be applied to different color pigments and Zion pigments in order to implement a variety of colors, the most important in the preparation of the functional rubber clay is the formulation ratio of each composition, after each composition is prepared separately It is preferable to mix these.

On the other hand, adding a predetermined amount of antimicrobial agent in the mixing process to prevent the growth of bacteria when manufacturing a low-weight silicone composition for the reaction, and the addition of a predetermined amount of photoluminescent agent to produce a luminous work that can produce a variety of atmospheres by emitting light at night Can be. In addition, if the user directly removes some of the functional low specific gravity silicone compositions having different colors and mixes them, the silicone composition dough having another color can be freely made.

Hereinafter, the physical properties according to the composition ratio of the "cooperative low specific gravity silicone composition discolored with temperature" according to the present invention using the composition as described above will be described with an example.

&Lt; Example 1 >

68 parts by weight of silicone base, 17 parts by weight of plasticity regulator, 3 parts by weight of anti-solidification agent, 1 part by weight of color pigment, 10 parts by weight of silica-based hollow filler, 1 part by weight of Zion pigment were mixed and kneaded to prepare a working silicone composition.

&Lt; Comparative Example 1 &

78 parts by weight of silicone base, 13 parts by weight of plasticity regulator, 3 parts by weight of anti-solidification agent, 1 part by weight of color pigment, 4 parts by weight of silica-based hollow filler, 1 part by weight of Zion pigment were mixed and kneaded to prepare a working silicone composition.

Comparative Example 2

A silicone silicone powder was prepared by mixing and kneading 36 parts by weight of a silicone base, 57 parts by weight of a plasticity control agent, 3 parts by weight of a solidifying agent, 1 part by weight of a color pigment, 2 parts by weight of a silica-based hollow filler, and 1 part by weight of a Zion pigment.

The plasticity of the functional silicone composition prepared in Example 1 and Comparative Examples 1 to 2 over time (Units) was measured and shown in Table 1 below.

However, the plasticity meter used as the test standard is to load the specimen between two parallel racks, apply a predetermined load, and read the time and thickness changes with a dial indicator to obtain plasticity.

① Specification: ASTMD-926

② Type: Williams Type

③ Standard specification: Pressurized load: 5Kg, Pressurized area: 60mm in diameter,

            Dial gauge: Stroke 15mm or more 1 / 100mm, Body weight: about 10kg

④ Sample preparation: sample thickness 10 mm, cylindrical diameter 16 mm

⑤ Test method: a. Set the dial indicator to zero.

             b. Wait until the temperature of the environment is stable.

             c. Place samples quickly between two parallel shelves.

             d. Read the gauge after the time you want to measure.

TABLE 1

As shown in Table 1, the functional silicone composition prepared in Example 1 did not harden at all even after being left at room temperature for a long time, and the product model was well shaped even when the workpiece was molded into the product due to proper plasticity. It is not easy to form the workpiece, so it can be stored for a long time.

However, the functional silicone composition prepared in Comparative Example 1 was not solid at all even after being left at room temperature for a long time, and the plasticity was too low, so that the model of the workpiece was distorted even when molding the workpiece, and the functional silicone prepared through Comparative Example 2 The composition was impossible to manufacture the workpiece because the product was not made and broken.

The plasticity over time change (units) of the functional silicone composition prepared in Example 1 and other companies' products is measured and shown in Table 2 below.

<Table 2>

As can be seen in Table 2 above, in the case of the functional silicone composition according to the present invention, there may be some errors in the measurement, but even when left at room temperature for a long time there is no large change in the degree of plasticity, In case of company A, plasticity improves as time goes by. If more than 1 day elapses, the surface is cracked and work is impossible.In case of company B, plasticity increases as time passes. If the above elapses, the surface is hardened like a sponge, so it is impossible to work. In the case of C company, the plasticity is high from the beginning, and it is very unsuitable for infants and children to make a workpiece.

In addition, by controlling the content ratio of the silica-based hollow filler that is essentially mixed in the silicone composition according to the present invention by reducing the specific gravity of the silicone composition to about 0.8 ~ 0.9 to enable a smoother and lighter texture expression and create a product that can float in water It can be used in various environments.

On the other hand, as another embodiment of the present invention can be applied hollow filler acrylic. A conjugated low specific gravity silicone composition according to another embodiment of the present invention; A gel-based silicone base prepared from 60% to 75% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated; A plasticity modifier for preparing a hardness of 15 to 25% with respect to the total weight of the silicone composition and made of powder-based silica; It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification; It is provided with 1 to 3% by weight of the total silicone composition and a color pigment for producing a color; It is provided with 0.3 to 5% by weight of the total silicone composition and the hollow filler of the acrylic-based for low specific gravity; Zion pigment is prepared in 0.01 to 3% by weight based on the total weight of the silicone composition; It can be mixed.

The acrylic hollow filler is made of 0.3 to 5 parts by weight based on the total weight of the silicone composition, it is contained in the silicone composition serves to reduce the specific gravity thereof. In another embodiment according to the present invention, when the acrylic hollow filler is mixed in an amount of about 0.3% with respect to the total weight of the silicone composition, the specific gravity may be reduced to about 0.8, and when mixed about 5%, the specific gravity may be reduced to about 0.45.

As described above in another embodiment of the present invention as described above, in addition to the essential components of the silicone composition, the antimicrobial agent and the photoluminescent agent may be mixed to suppress bacterial propagation and may provide various colors and luminous functions. .

On the other hand, through the adjustment of the content ratio of the color pigments and Zion pigments are essentially mixed in the "cooperative low specific gravity silicone composition discolored according to the temperature" according to the present invention can make a silicone composition dough that changes its color according to temperature changes have.

The color change of the "co-operative low specific gravity silicone composition" according to the present invention which is discolored according to the temperature produced by the embodiment according to the present invention is shown in the photo below in Table 3.

<Table 3>

That is, as shown in Table 3, the silicone composition according to the present invention in which yellow color pigments are mixed has a dark yellow color at room temperature (18 ° C), and the zion pigment color becomes transparent at 40 ° C. The silicone composition according to the present invention is changed to pale yellow close to white, and the orange pigment is mixed with dark orange at room temperature (18 ° C.), and turns to pale orange at 40 ° C., and the color pigment of purple is mixed. It can be seen that the silicone composition according to the present invention is dark purple at room temperature (18 ° C.) but turns pale sky blue at 40 ° C. Accordingly, when the workpiece is made using the silicone composition according to the present invention, the color of the workpiece may be changed in accordance with temperature, thereby inducing curiosity and creativity / creation more effectively for children or infants.

Claims (8)

In the functional low specific gravity silicone composition which is composed of an inorganic compound which can be repeatedly used as a functional degree and discolored with temperature;
The cooperative low specific gravity silicone composition is;
A gel-based silicone base prepared from 60 to 75% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated;
A plasticity modifier for preparing a hardness of 15 to 25% with respect to the total weight of the silicone composition and made of powder-based silica;
It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification;
It is provided with 1 to 3% by weight of the total silicone composition and a color pigment for producing a color;
It is provided with 3 to 10% by weight of the total silicone composition and the hollow filler of the silica-based for low specific gravity;
Zion pigment is prepared in 0.01 ~ 3% with respect to the total silicone composition midrange; A functional low specific gravity silicone composition discolored with temperature, characterized in that the mixture is made. The method of claim 1,
The Zion pigment is gradually changed to transparent as the temperature is increased based on 25 to 28 ° C. When the temperature is lower than the reference temperature, the Zion pigment is a reversible Zion pigment that exhibits its own color. Specific gravity silicone composition. The method of claim 1,
The cooperative low specific gravity silicone composition is;
0.1 to 1% by weight of the total silicone composition and an antimicrobial agent to prevent bacterial growth; The ballistic low specific gravity silicone composition discolored with temperature, characterized in that it is made by further mixing. The method of claim 1,
The cooperative low specific gravity silicone composition is;
1-10% of the photoluminescent agent by weight of the total silicone composition; The ballistic low specific gravity silicone composition discolored with temperature, characterized in that it is made by further mixing. In the functional low specific gravity silicone composition which is composed of an inorganic compound which can be repeatedly used as a functional degree and discolored with temperature;
The cooperative low specific gravity silicone composition is;
A gel-based silicone base prepared from 60 to 75% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated;
A plasticity modifier for preparing a hardness of 15 to 25% with respect to the total weight of the silicone composition and made of powder-based silica;
It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification;
It is provided with 1 to 3% by weight of the total silicone composition and a color pigment for producing a color;
It is provided with 0.3 to 5% by weight of the total silicone composition and the hollow filler of the acrylic-based for low specific gravity;
Zion pigment is prepared in 0.01 ~ 3% with respect to the total silicone composition midrange; A functional low specific gravity silicone composition discolored with temperature, characterized in that the mixture is made. 6. The method of claim 5,
The Zion pigment is gradually changed to transparent as the temperature is increased based on 25 to 28 ° C. When the temperature is lower than the reference temperature, the Zion pigment is a reversible Zion pigment that exhibits its own color. Specific gravity silicone composition. 6. The method of claim 5,
The cooperative low specific gravity silicone composition is;
0.1 to 1% by weight of the total silicone composition and an antimicrobial agent to prevent bacterial growth; The ballistic low specific gravity silicone composition discolored with temperature, characterized in that it is made by further mixing. 6. The method of claim 5,
The cooperative low specific gravity silicone composition is;
1-10% of the photoluminescent agent by weight of the total silicone composition; The ballistic low specific gravity silicone composition discolored with temperature, characterized in that it is made by further mixing.